All state agencies shall control travel expenses by doing all of the following: (A) Complying with any travel directives issued by the director of budget and management;(B) Using, when possible, the online travel authorization and expense reimbursement process;(C) Conducting meetings, whenever possible and in compliance with section 121.22 of the Revised Code, using conference calls, teleconferences, webinars, or other technology tools;(D) Using fleet vehicles for official state travel whenever possible; and(E) Following restrictions set by the department of administrative services regarding mileage reimbursement pursuant to section 125.832 of the Revised Code.In addition to the methods of travel expense control listed above, a state agency may use a state-contracted rental vehicle provider for employee vehicle travel exceeding one hundred miles.The director of budget and management shall not reimburse any state agency employee for unauthorized travel expenses.